Concrete silo.



J. A. BRODRIGK.

CONCRETE SILO.

APPLICATION IILBD APR.17, 1914.

Patented Mar. 9, 1915.

l/VVE/VTOI? (IA .1570 d/ c/e TTOR/VEY WITNESSES:

NORRIS PETERS C0 PHOTO-LlTnu., WADHINUIUII. n4 1..

JAMES A. BRODB-ICK, or MABSHALLTOWN, Iowa.

. CONCRETE sILo.

Specification of Letters Patent.

Patented Mar. 9, 1915.

Applicationfiled April 17, 1914. Serial No. 832,656.

To all whom it may concern:

Be it known that I, JAMES A. BRoDnIoK, a citizen of the United States, residing at Marshalltown, in the county of Marshall and State of Iowa, have invented certain new and useful Improvements in Concrete Silos, of'which. the following is a specification.

This invention relates toconcrete silos and more especially to silos made up of concrete blocks, and my object is to produce a concrete silo embodying bands for encircling the meeting ends of adjacent tiers of the blocks and forming the sills and lintels of the door frames.

A further object is to produce a silo of this characterwhich can be erected easily and cheaply and which embodies the desirable features of simplicity, strength and durability.

lVith these objectsin view, the invention consists in certain novel and peculiar features of construction and organization as hereinafter described and pointed out in the appended claims, and in order that it may be fully understood reference is to be had to the accompanying drawing, in which- Figure 1, is an elevation of a silo embodying my invention. Fig. 2, is a central vertical section of the upper part of the silo and shows the inside of the door openings. Fig. 3, is an enlarged horizontal section on the line IIIII1 of Fig. 1. Fig. 4, is a similar section on the dotted line IV of Fig. 1. Fig. 5, is a vertical section on the line VV of Fig. 4.

In the said drawings, 1 represents a silo composed of a plurality of horizontal tiers of concrete blocks 2, adjacent tiers being arranged in break-joint relation as indicated clearly in Figs. 1 and 2.

The silo is provided with a series of door openings 3, in vertical alinement, and the sills and lintels of said openings are formed by concrete rings 1 molded around the blocks at the junction lines of each tier, said rings in the vertical plane of the door openings having integral ribs 5 which bridge the door openings from stile to stile thereof, as shown in Figs. 4 and 5, most clearly, the upper portion of each rib forming the sill of the door opening above it and the lower portion of each rib the lintel of the door opening below it.

The blocks are preferably provided with reinforcement such as wire gauze 6 and are provided in their edges with grooves which match similar grooves in the abutting edges of adjacent blocks and filling the channels formed by these registering grooves 7 is abonding material such as cement 8 or any equivalent substance or material. The blocks are also preferably stiffened and. strengthened by inwardly projecting ribs 9, and with additional ribs 10 as shown in Figs. 4 and 5, to increase the depth of the door openings and in conjunction with the adjacent edges of the blocks which are beveled outwardly forma substantial and wide bearing surface for the block-shaped doors 11 which are fitted in said openings from within the silo, the said doors having central bolts 12 upon which arepivoted shallow bow-springs 13 adapted to extend rearwardly across the door opening and bear against the outer faces of the blocks which immediately flank said openings and thus retain the doors in position.' 7

When the door is to be opened the bowsprings areturned to a vertical position so that they will be capable of passing through the door openings as the door is pushed inwardly or withdrawn from the opening.

In the preferred construction, the silo is provided with an air chamber 14, formed byproviding inner tiers of blocks 15, the same being arranged in break-joint relation with respect to the blocks of the outer tiers and bearing against the'inner edges of the ribs 9, the bond being made more perfect by providing the blocks of the inner wall with grooves 16 in their edges for the reception of a bonding filling 17 and the inneredges of the ribs 9 are also preferably provided with vertical grooves 18 containing bonding material 19 for more firmly uniting the inner wall with the outer wall.

It will be seen that a silo of either the single or double-walled type made up of blocks having cement filled grooves which follow all the joint lines of the silo, that is the lines where the tiers of blocks meet and the lines where the blocks of each tier meet, is practically a monolithic structure possessing the desirable qualities of strength and durability, which structure if properly reinforced as contemplated by this application will be practically indestructible and capable of withstanding heavy winds as well as extremes of temperature, it being further noted that the double wall construction particularly is also well adapted to guardtight and increased in strength and durability by molding bands 4 around the silo over the joints between the tiers of blocks and by providing said bands with inwardly projecting portions which constitute the sills and lintels of adjacent door openings.

The doors of the silo, shown as made of wood, may of course be of cement or any other suitable material and it is equally obvious that the character of the reinforcing employed in the blocks and in the bands may be changed without involving any departure in principle.

From the above description it will be ap parent that I have produced a silo embodying thefeatures of advantage enumerated as desirable and I wish it to be understood that I do not desire to be restricted to the eXact details of construction shown, but reserve the right to make all changes falling within the spirit and scope of the appended claims.

1. A building structure composed of a plurality of tiers of blocks, the blocks of one tier'breaking joint with the blocks of adjacent tiers, each block having communicating grooves in its sides and ends, and a cement bonding material filling said grooves and uniting adjacent blocks of the same-tier and adjacent tiers firmly together and horizontal circumferential bands formed completely around the structure in the plane of the joints between the tiers of blocks; said structure having vertically alined door openings bridged by said bands; said bands having ribs projecting inwardly of said door openings and forming lintels for overlying and. sills for underlying the door openings.

2. A building structure composed of ,a plurality of tiers of blocks, the blocks of one tier breaking joint with the blocks of ad;

j acent tiers, each block having communicat-;

ing grooves in its sides and ends, and a ce-" ment bonding material filling said'groovesand uniting ad acent blocks of the same tier and adjacent tiers firmly together and hori-l, zontal circumferential cement bandsvformedcompletely around the structure in the plane of the joints between the tiers of blocks;

said structure having vertically-alined open-;

ings which taperoutwardly and ofwhich the bands form the upper and lower ends,

and tapered doors fittingin said openings;

3. A building structure composed of a 60: plurality of tiers of: suitably reinforced blocks, the blocks of one tier breaking joint with the blocks of adjacent tiers, each-block having communicating grooves in its sides and ends, a cement bondingjmaterial fillingsaid grooves and uniting adjacent blocks of the same tier and ad acent tlers firmly to gether; said blocks havmg inwardly projecting vertical ribs, and an inner wall paralleling the outer Wall and engagingv the in: nor edges of sand blocks, bonding material interposed between and firmly engaging the lIIzIll=Wtll and the inner edges of said ribs,

and horizontal circumferential cement bands; formed completely around the structure 1n (Ponies of this patent may be obtained for five oents each, by addressing the Commissioner of Patents,

Washington, D. (3.? 

